Suspected Boko Haram killers gunned down at least 9 people in Cameroon on Monday night in a sustained escalation of mass murder by a group of ruthless terrorists who have killed tens of thousands, displaced millions and kidnapped scores of women in recent years.

Local newspaper, L’Oeil du Sahel, said the four civilians were killedin the locality of Bame near Kolofata in Cameroon’s far north along the border with Nigeria where the terrorists are based.